Improvement in water-meters



` UNITED :STATES ADAM WELLSHMIDI, OF ALBANY, NEW YORK.

IMPROVEMENT IN IWATER-METERS.

Specification forming part of Letters Patent No. 154,934, datedSeptember 8, 1874; application filed To all whom't may concern Beitknown that I, ADAM WELLsHMIDT, of Albany, in the county of Albany andState of VNew York, have invented certain new and useful Improvements inWater-Meters 5 and I do hereby declare that the following is al full,clear, and exact description thereof, which will enable others skilledin the art to which it pertains to make anduse the same, reference beinghad to the accompanying drawings, and to the letters of reference markedtheron, which form a part of this specification.

My invention relates to improvements in water-meters, and consists inthe employment f of a hollow rocking beam, to the ends of which areattached flexiblel pouches, in combination with connecting-rods torocking valves that regulate the ilow of the liquid to and from themeter. The eXible pouches aforesaid are filled with air or liquid insuch a manner that one pouch is empty when the other one is lled, andvice versa, the contents of *one pouch `passing from and to the otherone through the hollow rocking beam to the ends of which the pouches areattached. The pin on which the rocking beam rocks may be connected toany suitable registering apparatus by which the amount of liquid thatpasses through the meter for each stroke of the rocking beam can beaccurately ascertained, as will now be more fully shown and described.

y On the drawings, Figure l represents a ground plan of my invention.Fig. 2 represents a central longitudinal section. Fig. 3 represents across-section on the line A B; and Fig. 4 represents a cross-section onthe line@ D.

Similar letters refer to similar parts wherever they occur on thedifferents parts of the drawings. e

a a represent two cylinders or receptacles for the liquid that is to bemeasured. The cylinders 0ll a' are covered at the top by means of thecover b, as shown in Fig. 2. The receptacles a a are secured to the basec, in which is located the valve-chest d and the rocking valves c c', asshown in Fig. 2. In the. cover b is located a hollow beam, f, that ismade to Y rock on a fulcrum, g, in a manner as will hereinafter bedescribed. Elastic diaphragms h h are closely attached between the upperends May 22j, 1874.

of the receptacles a a and the open ends of the hollow beam f, for thepurpose of preventing the liquid in one of the said receptacles from 1entering the other 011e. Connecting-rods it are vmade to connect eachend of thehollow beam f with each of the hinge-pins k 1c on the rockin gl valves ec', as shown in Fig. 2. 'I o each end of the hollow beam fisclosely tted an elastic pouch,l Z', the lower ends of which pouches areclosely fitted around the lower ends of each of the connecting-rods M',by which a communication is established between the elastic pouches ZZthrough the-hollow beam The valves e e are provided with curved elasticfaces m m, tted to the metallic valves in a suitable manner. Thevalve-chest d is divided in two compartments, n and o, by means of thewall p, as shown in Fig. 2. A pipe, n', in communication with thecompartment a, represents the supply-pipe through which theliquid entersthe meter, and a pipe, o, in communication with the compartment o,represents the delivery-pipe through which the liquid is forced outafter passing through the meter. Two openings, q q', are madefrom thecompartment a, and two openings, r fr', are made from the compartment o,to the receptacles a and a', as shown in Fig. 2. To the lower ends ofeach of the connecting-rods i i is jointed a friction-roller, s s', thatmoves over the surface of each of the grooved plates t t as the beam fis rocked on its fulcrum g. The grooved plates t t' are made adjustablefrom or toward-the friction-rollers s s by means of the setscrews u u'u' u', as shown. The pouches l Z' are to be partially filled with air,gas, or suitable liquids, to such an extent that one of the said pouchesshall be empty, or nearly so, when the other one is filled. The

the upper part of the rocking beam f, which hole is afterward closed bya set-screw, o.

The operation of my invention is as follows: The water, entering throughthe pipe a', passes through the opening q into the chamber a, in sodoing compressing the elastic pouch l and forcing the gas or liquidcontained therein through the hollow beam f into `the other pouch, l',thereby forcing the liquid contained in the pipe o. As the pressure inthe chamber c in- PATENT FFICE.

pouches can easily beilled through a hole in chalnber a/ out through theopening 1"' andv creases, it ultimately expands'the diaphragm h upward,and, in so doing, automaticallyv opens the opening q', when the liquidenters through the opening q to the chamber a', where asimilar operationis performed as heretofore described in relation to the chamber a. Inthis manner, it will be seen that, as the liquid enters successively oneor the other of the chambers a a', so is the beam f rocked on itsfulcrum, by which, and a suitable registering apparatus in connectionwith the said rocking shaft g, the proper amount of liquid that passesthrough the apparatus can easily be ascertained.

This, my improved meter, can also be used as a motor, operated by gas orliquids of a suitable pressure, as maybe desired.

Having thus fully described the nature, construction, and operation ofmy invention, I wish to secure by Letters Patent and claim- 1. rIhecombination of thc rocking beam f, jointed rods i i, valves e e' withtheir rollers s s', and elastic curved plates m m', and the adj ustablegrooved plates't t', as and for the purpose herein set forth anddescribed.

2. The combination, construction, and arrangement of the hollow rockingbeam f, diaphragms h h', elastic pouches l l', receptacles a a',connecting-rods c' i', valves e e', rollers s s', grooved plates t t',elastic plates m m', the inlets q q, andthe outletsr r', as herein shownand described.

In testimony that I claim the foregoing as my own, I have affixed mysignature in presence of two Witnesses.

ADAM WELLSHMIDT.

Witnesses:

ALBAN ANDRN, JOHN R. HEARD.

